Title (en)

CONTROLLER ARCHITECTURE FOR RF TRUNKING DISTRIBUTED MULTISITE SWITCH

Publication

EP 0499736 A3 19930224 (EN)

Application

EP 91307858 A 19910828

Priority

US 65879891 A 19910222

Abstract (en)

[origin: EP0499736A2] A radio frequency (RF) signal transmission system is interconnected by a multisite switch that routes command and audio transmission signals between the RF systems. The multisite switch has a distributed architecture of nodes wherein each node is coupled to one of the RF systems, such as a site controller or dispatcher console. Each of the switch nodes has a common architecture in which a single controller board operates a plurality of audio boards. In addition, the controller board has two principal processors that communicate with each other via a dual-port RAM. <IMAGE>

IPC 1-7

H04Q 7/04; H04B 7/26

IPC 8 full level

H04W 84/08 (2009.01); H04W 4/10 (2009.01)

CPC (source: EP US)

H04W 84/08 (2013.01 - EP US); H04W 4/10 (2013.01 - EP US); H04W 76/45 (2018.01 - EP US)

Citation (search report)

• [X] US 4630263 A 19861216 - TOWNSEND GREG M [US], et al
• [E] EP 0473355 A2 19920304 - ERICSSON GE MOBILE COMMUNICAT [US]
• [E] WO 9116797 A1 19911031 - MOTOROLA INC [US]

Designated contracting state (EPC)

DE DK GB SE

DOCDB simple family (publication)

EP 0499736 A2 19920826; EP 0499736 A3 19930224; EP 0499736 B1 19981007; CA 2050012 A1 19920823; DE 69130319 D1 19981112; DE 69130319 T2 19990527; DK 0499736 T3 19990621; US 5239538 A 19930824

DOCDB simple family (application)

EP 91307858 A 19910828; CA 2050012 A 19910827; DE 69130319 T 19910828; DK 91307858 T 19910828; US 65879891 A 19910222